Remote control of an iPad

I will have an iPad Pro connected to a television. When a video is playing there are some simple controls I would like to access from across the room. Ideally, I'd be happy with a remote control that I purchase, or an app for my iPhone. Both devices are on the same Wi-Fi and on the same Apple ID. I will also be within Bluetooth range. I tried a "Switch" function, but none of the instructions matched how my devices work. I gave up on that.

I've searched extensively for a solution online but not finding much or I'm getting conflicting information. All I want to do is to be able to pause a movie, fast forward, and play. That's it!